Wearable Wound Heating Patch With Nanofibers for Stable Thermoregulation

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Solution Overview

Problem

Current wound and skin care treatment devices are limited by their bulkiness, lack of portability, inefficiency, and inability to provide consistent thermoregulation, which can lead to adverse outcomes in wound healing and infection prevention, especially in the context of multi-drug resistant infections like MRSA. Additionally, existing phototherapies are cumbersome and ineffective for treating multiple skin conditions simultaneously.

Innovation Solution

A multifunctional treatment device utilizing nanotechnology, incorporating a chemical heat source, light emitting nanofibers, and electrical stimulation, which can be worn on the skin to provide thermoregulation, phototherapy, and electrical stimulation, and is powered by a long-lasting nanotechnology battery, allowing for remote control and real-time feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional heating applicators are used, then heating treatment can be provided, but the devices are bulky and difficult to fit onto small wounds or injuries at hard-to-access locations

Engineering Contradiction:
Improveease of application to woundsVSAvoiddevice size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The heating device is segmented into a flexible heating element that can be divided or cut to match the specific size and shape of the wound area, allowing it to conform to small or irregularly shaped wounds while maintaining portability and ease of application

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The heating applicator uses a flexible thin film structure that can be easily conform ed to the contours of various body parts and wound shapes, enabling simple application to hard-to-reach locations without requiring bulky hardware

Inventive Principle:
Principle #30Flexible shells and thin films

2Duration of action of moving object

If traditional heating applicators are used, then heating treatment can be provided, but they are not long lasting and require frequent change of the applicator

Engineering Contradiction:
Improveduration of heating treatmentVSAvoidfrequency of applicator replacement
Core Design Contradiction:
Duration of action of moving objectVSProductivity

Solution Approach 1:

The heating device incorporates a continuous heat source mechanism that maintains therapeutic temperature throughout the treatment period, ensuring uninterrupted heating action and eliminating the need for frequent applicator changes

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The device uses phase change materials or chemical reactions that provide sustained heat release over an extended period, changing the temporal parameter of heat delivery to match the required treatment duration and reduce replacement frequency

Inventive Principle:
Principle #35Parameter changes

3Reliability

If traditional heating applicators are used, then heating treatment can be provided, but some are hard to reheat and cannot provide consistent thermoregulation

Engineering Contradiction:
Improveconsistency of thermoregulationVSAvoidease of reheating
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The heating device incorporates self-regulating thermal properties or automatic control mechanisms that maintain consistent temperature without requiring external intervention for reheating, ensuring reliable thermoregulation while simplifying the reheating process

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device includes temperature sensing and control systems that provide real-time feedback to maintain consistent therapeutic temperature, automatically adjusting heat delivery to prevent fluctuations and ensure reliable thermoregulation throughout treatment

Inventive Principle:
Principle #23Feedback

4Use of energy by moving object

If existing heating devices are used, then treatment can be provided, but they are low in efficiency and high in waste of energy

Engineering Contradiction:
Improveenergy efficiencyVSAvoidenergy waste
Core Design Contradiction:
Use of energy by moving objectVSLoss of energy

Solution Approach 1:

The heating device uses porous insulation materials that minimize heat loss to the surrounding environment, directing thermal energy efficiently to the treatment area and reducing overall energy consumption while maintaining therapeutic temperature

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The device employs composite material structures that combine heat generation, storage, and delivery functions in a single integrated system, improving energy utilization efficiency by reducing thermal losses and eliminating the need for separate heating components

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device facilitates efficient wound healing, infection prevention, and pain management by providing consistent thermoregulation and targeted therapy, reducing hospital stay times and costs while effectively addressing multi-drug resistant infections.

Implementation Method 1

a chemical heat source, wherein the chemical heat source can produce a temperature in the range of about -10°C to about 50°C

Methodology Applied
Scientific EffectExothermic chemical reaction: Exothermic Reaction

Implementation Method 2

a heat conductive layer having a front side and a back side, wherein the heat conductive layer is made of nanofibers extensively affixed to the heating receiving surface of the heat application layer

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

a lighting mechanism interwoven into the heat application layer

Methodology Applied
Scientific EffectLight emission: Light

Implementation Method 4

a plurality of electrodes integrated with the heat application layer, wherein the electrodes are coupled to the power source providing a mechanism for neuromuscular stimulation

Methodology Applied
Scientific EffectElectrical stimulation: Electric Field

Data Source

PatentEP2948111B1Heating device using exothermic chemical reaction
Publication Date: 2018.03.14 ISSEROW JONATHAN
  • EP2948111B1 patent drawingFigure 1~3
  • EP2948111B1 patent drawingFigure 4A~4D

AI summary

The current invention discloses a treatment device having a heat source, a power source, a heat applicator and a lighting mechanism. The power source includes at least one battery having superior properties such as prolonged electricity production and prompt recharging. The heat applicator includes a heat conductive layer made from nanofibers, providing highly efficient heat distribution to the targeted regions. The lighting mechanism employs light emitting nano fibers to treat targeted regions. The power source provides energy to the light source, which generates light so that the applicator may distribute to an injury site or wound bed of a user. The heat source may be an exothermic chemical reaction designed to last for several hours supplying heat to the treatment device or an electronically produced heat. The treatment device further comprises a plurality of electrodes for electrical stimulation treatment.